Hack saw frame



FIG. 1 is a side elevational view of a hack saw frame showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a sectional view taken along line 6--6 of FIG. 1; and

FIG. 7 is a sectional view on an enlarged scale taken along line 7--7 of FIG. 1;

FIG. 8 is a sectional view on an enlarged scale taken along line 8--8 of FIG. 1.

The blade is shown in broken lines for illustrative purposes only. 

The ornamental design for a hack saw frame, substantially as shown and described. 